In Quickbooks (desktop, at least), when one is entering a number in the register or any other input, you can do mathematical operations (e.g. adding, subtracting, multiplying, dividing), and upon pressing enter, the final result is put into the form.

This ends up being really slick in a lot of instances, and I find myself missing this functionality in Zoho Books.

No idea how popular this would be, but I'm surprised I couldn't find anyone else suggesting this.

Thanks for the consideration!